Cell Phones in the Classroom?

http://theinnovativeeducator.blogspot.com/2010/10/thinking-outside-ban.html#comment-form 

I'm still on the fence about the 'cell phone in schools' debate.  While your article brings to light some good points, I feel like they could still be a nuisance.  How do we go about 'regulating' them?  I worry about kids sitting in the back row (or even the front) and texting their friends about weekend plans or playing games rather than using them for educational benefit. I know that cell phones are banned in some locker rooms because people were taking inappropriate pictures and sending them to all their friends.  And there is always the issue of theft, or kids whose families cant afford them...

Also, what age is it appropriate to allow children to use them in class?

It will take a lot of trust and responsibility in the students to see this implemented properly.  I'm curious to see where the future will lead this discussion.